Classifying triangles how to classify a triangle based on the sides of the triangle ex 6

The video tutorial explains how to classify triangles based on their sides. It covers the characteristics of equilateral, isosceles, and scalene triangles, focusing on the number of congruent sides. The tutorial concludes by identifying a given triangle as isosceles due to its two congruent sides.

What is the significance of tick marks in triangle classification?

Can a triangle have all sides of different lengths? Explain.